fathom - 2:04 pm on Apr 18, 2012 (gmt 0)
I've been digging around for a few weeks & not seen a single webmaster reporting they have recovered from this "unnatural" link penalty*
That could be because
"When things are great you don't need help and the original help was free of any requirement to advise" or
"You can't fix what you can't find"... if you get stuck on the wrong links you can't get re-included until you hone in of the correct ones or
It takes time to get re-included.